Home / 22,905.15-34,513.77-18,836.30

Finding the Fourth Proportional to 22,905.15, 34,513.77 and 18,836.30

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Solution

The fourth proportional to 22,905.15, 34,513.77 and 18,836.30 is: 28,382.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,905.15 : 34,513.77 = 18,836.30 : x
  2. Step 2: Convert to fraction form
    22,905.15/34,513.77 = 18,836.30/x
  3. Step 3: Cross multiply
    22,905.15x = 34,513.77 × 18,836.30
  4. Step 4: Simplify right side
    22,905.15x = 650,111,725.85
  5. Step 5: Solve for x
    x = 650,111,725.85/22,905.15
  6. Step 6: Final answer
    x = 28,382.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.